EP 0970179 A1 20000112 - LAUNDRY ADDITIVE PARTICLE HAVING MULTIPLE SURFACE COATINGS
Title (en)
LAUNDRY ADDITIVE PARTICLE HAVING MULTIPLE SURFACE COATINGS
Title (de)
MEHRFACH BESCHICHTETE WÄSCHEZUSATZTEILCHEN
Title (fr)
PARTICULE ADDITIVE POUR LESSIVE PRESENTANT PLUSIEURS REVETEMENTS DE SURFACE
Publication
Application
Priority
- IB 9800242 W 19980227
- US 4143397 P 19970320
Abstract (en)
[origin: WO9842818A1] A laundry additive particle having multiple coatings and compositions employing the particle are provided. The laundry additive particle comprises a central core particle with the core particle comprising a porous carrier core material and a glassy encapsulating material intermixed with the carrier material. The glassy encapsulating material is derived from one or more at least partially water-soluble hydroxylic compounds having an anhydrous, nonplasticized, glass transition temperature, Tg, of at least about 0 DEG C. An optional intermediate encapsulating material may be coated on the central core particle. The intermediate encapsulating material may comprise a carbohydrate material having an anhydrous, nonplasticized, glass transition temperature, Tg, of at least about 130 DEG C. Lastly, an external coating material is coated on the core particle or the intermediate encapsulating material which provides the laundry additive particle with a substantially non-tacky surface. The external coating material is derived from one or more at least partially wash soluble or dispersible compounds selected from the group consisting of waxes, water-soluble polymers, fatty compounds, carbohydrates, cellulose and cellulose derivatives, natural and synthetic gums, silicates, borates, phosphates, chitin and chitosan, and mixtures thereof. The laundry additive particle has a hygroscopicity value of less than about 80 %. Preferably, a laundry or cleaning agent such as a perfume is supported on or contained in the porous carrier.
IPC 1-7
IPC 8 full level
C11D 17/06 (2006.01); C11D 3/08 (2006.01); C11D 3/10 (2006.01); C11D 3/12 (2006.01); C11D 3/22 (2006.01); C11D 3/50 (2006.01); C11D 17/00 (2006.01); C11D 3/386 (2006.01); C11D 3/39 (2006.01)
CPC (source: EP US)
C11D 3/08 (2013.01 - EP US); C11D 3/10 (2013.01 - EP US); C11D 3/128 (2013.01 - EP US); C11D 3/222 (2013.01 - EP US); C11D 3/505 (2013.01 - EP US); C11D 17/0039 (2013.01 - EP US); C11D 3/3905 (2013.01 - EP US)
Citation (search report)
See references of WO 9842818A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9842818 A1 19981001; AU 6003598 A 19981020; BR 9808409 A 20000516; CA 2282405 A1 19981001; CA 2282405 C 20030422; CN 1256710 A 20000614; EP 0970179 A1 20000112; JP 2001518135 A 20011009; MA 24501 A1 19981001; US 6221826 B1 20010424; ZA 982161 B 19980915
DOCDB simple family (application)
IB 9800242 W 19980227; AU 6003598 A 19980227; BR 9808409 A 19980227; CA 2282405 A 19980227; CN 98805168 A 19980227; EP 98903228 A 19980227; JP 54531998 A 19980227; MA 25002 A 19980317; US 38155199 A 19990920; ZA 982161 A 19980313